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02-22-2023, 08:12 PM #21
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The charger can’t change the current being supplied to the battery without changing the voltage. The idea that chargers have stages is marketing BS. Stages are ways of describing the battery charging process, but have nothing to do with the charger and really have little significance. A charger is nothing more than a DC power supply that monitors current. Current is determined by output voltage and battery state of charge. The charger doesn’t change the current.
John & Kathy
2014 F250 Lariat FX4 6.2L SBCC
2014 Reflection 303RLS
SW Indiana
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02-22-2023, 09:12 PM #22
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The fast battery check that has been done numerous times does not do a proper job of deterring battery condition. It may do fine when checking a standard auto battery.
It likely gives some indication of some issues, but I would not trust it to say battery is OK or not. Properly testing deep cycle LA or lithium batteries takes a many hours of testing time. You can run a search on how to test deep cycle batteries but few people are willing to spend the time, money and effort to do it.
Previously mentioned battery monitor is a great step in understanding what is going on and to have a much better idea here on out, how much energy goes in, comes out and the state of battery charge. This should be done before investing in different batteries, if for no other reason to better determine the battery capacity needed.
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02-22-2023, 09:21 PM #23
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02-23-2023, 09:19 AM #24
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That is exactly what the charger does, it changes voltages based on the current battery voltage. This is from Progressive Dynamics PD9245C charger:
14.4 Volts (Boost Mode) – Returned the battery to 90% of full charge in approximately 8 hours. The battery reached full charge in approximately 11 hours.
13.6 Volts (Normal Mode) – Required 40 hours to return the battery to 90% of full charge and 78 hours to reach full charge.
13.2 Volts (Storage Mode) – Required 60 hours to return the battery to 90% of full charge and 100 hours to reach full charge.
The integrated Charge Wizards ability to change the output voltage of the converter will significantly reduce the
amount of time it takes to recharge your RV battery. The lower voltage for Storage Mode prevents gassing and
reduces water loss during long-term storage2016 29RS
2008 2500 Chevy Duramax Diesel CC LTZ
Prev 5er 2010 Outback 321FRL
1994 Chevy 6.5TD 2500 ext Cab
25ft Coachman Catalina TT
Skamper Pop UP
Various tents
ALL great memories:D
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02-23-2023, 10:42 AM #25
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You are close, but not correct.
The charger changes voltage based on the current the battery is drawing, not the voltage on the battery. The voltage on the battery during charging is the charger output voltage so if the charger responded to that it would be constantly changing.
But the charger does not ever change the current, except by changing the voltage.John & Kathy
2014 F250 Lariat FX4 6.2L SBCC
2014 Reflection 303RLS
SW Indiana
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02-23-2023, 09:40 PM #26
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2016 29RS
2008 2500 Chevy Duramax Diesel CC LTZ
Prev 5er 2010 Outback 321FRL
1994 Chevy 6.5TD 2500 ext Cab
25ft Coachman Catalina TT
Skamper Pop UP
Various tents
ALL great memories:D
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02-23-2023, 10:32 PM #27
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Channging Battery Type?
Today, 01:22 AM in Electrical System and Wiring